This is where the harmonic balancer comes in. The circular device, made of rubber and metal, is bolted at the front end of the crankshaft to help absorb vibrations. It's usually connected to the crank pulley, which drives accessories like the air conditioner.
Additional costs: Ground water wells can also be tested for radon, then, if needed, can get a water radon mitigation system installed. Installing a water radon mitigation system runs from $1,000-$4,500, and maintenance runs $0 to $150 annually.
The average cost for a certified or licensed mitigation contractor to lower radon levels in a slab or basement home is about $1,500, and a crawl space home is about $3,000 or more. Your costs may vary depending on the size and design of your home and which radon reduction methods are needed.f your home has a radon problem, it can be fixed by installing a radon mitigation system in the home. EPA and the Nevada Division of Public and Behavioral Health recommends that you get a certified or licensed radon mitigation contractor to install the system.